linux_dsm_epyc7002/drivers/misc/cxl
Andrew Donnellan 7d1647dc4b cxl: abort cxl_pci_enable_device_hook() if PCI channel is offline
cxl_pci_enable_device_hook() is called when attempting to enable an AFU
sitting on a vPHB. At present, the state of the underlying CXL card's PCI
channel is only checked when it calls cxl_afu_check_and_enable() at the
very end, after it has already set DMA options and initialised a default
context.

Check the CXL card's link status before setting DMA options or initialising
a default context. If the link is down, print a warning and return
immediately.

Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-09-07 20:14:24 +10:00
..
api.c cxl: Fix force unmapping mmaps of contexts allocated through the kernel api 2015-08-30 18:47:26 +10:00
base.c cxl: Move include file cxl.h -> cxl-base.h 2015-06-03 13:27:19 +10:00
context.c cxl: Fix force unmapping mmaps of contexts allocated through the kernel api 2015-08-30 18:47:26 +10:00
cxl.h cxl: Set up and enable PSL Timebase 2015-08-30 18:56:34 +10:00
debugfs.c cxl: sparse: Silence iomem warning in debugfs file creation 2015-08-12 14:49:29 +10:00
fault.c cxl: Only check pid for userspace contexts 2015-06-03 13:27:18 +10:00
file.c cxl: Add alternate MMIO error handling 2015-08-18 19:34:43 +10:00
irq.c cxl: Release irqs if memory allocation fails 2015-08-27 13:51:18 +10:00
Kconfig cxl: Add CONFIG_CXL_EEH symbol 2015-08-17 13:56:29 +10:00
main.c cxl: Destroy cxl_adapter_idr on module_exit 2015-07-16 14:14:55 +10:00
Makefile cxl: Compile with -Werror 2015-08-11 07:43:40 +10:00
native.c cxl: Allocate and release the SPA with the AFU 2015-08-14 21:32:04 +10:00
pci.c cxl: Set up and enable PSL Timebase 2015-08-30 18:56:34 +10:00
sysfs.c powerpc updates for 4.3 2015-09-03 16:41:38 -07:00
trace.c cxl: Add tracepoints 2015-01-22 17:31:51 +11:00
trace.h cxl: use more common format specifier 2015-07-13 10:10:54 +10:00
vphb.c cxl: abort cxl_pci_enable_device_hook() if PCI channel is offline 2015-09-07 20:14:24 +10:00